New Products 2

Circulator Channels 225 To 400 MHz

A COAXIAL CIRCULATOR has been developed for military-communica-tions applications from 225 to 400 MHz. The lumped-element design features a patent-pending architecture that preserves the symmetry between ports while maintaining a very broadband performance. Its lightweight aluminum housing provides an efficient thermal path for dissipation of heat. The circulator achieves 16 dB typical isolation with 1-dB insertion loss. The typical VSWR is 1.40: 1 and the signal leakage is less than –100 dBc. Second harmonic levels are typically less than –60 dBc. The circulator, which measures 2.05 2.58 1. 14 in., handles power levels to 60 W CW. The rugged housing and unique design make the circulator suitable for both ground-based and airborne applications. Renaissance Electronics Corp., 12 Lancaster County Rd., Harvard, MA 01451; (978) 772-7774, FAX: (978) 772-7775, Internet: www.rec-usa.com.

GaN Amplifier Drives 20 To 520 MHz

MODEL SSPA 0.020-0.520-125 is a broadband gallium-nitride (GaN) power amplifier that is well suited for broadband military systems as well as commercial applications. It provides 100 to 125 W output power at 3-dB compression with typical small-signal gain of 58 dB and typical gain flatness of ± 2 dB across the full operating-frequency range. Designed for broadband jamming and communications systems, the amplifier offers typical power-added efficiency (PAE) of better than 50 percent. It measures 3. 4 6. 4 1 in. The noise figure at room temperature is typically 10 dB. The maximum input VSWR is 2.0: 1. The Class AB amplifier draws about 2 A quiescent current from a +28-VDC supply. The amplifier includes an external DC blanking command that enables and disables the module in typically only 12 to 15 microseconds. It is supplied with SMA female input and output connectors. Aethercomm, Inc., 2910 Norman Strasse Rd., Suite 105, San Marcos, CA 92069; (760) 598-4340, (760) 598-4342, e-mail: toddthornton@aethercomm.com, Internet: www.aethercomm.com.

SBC Fits 6U VME Systems MODEL PPC9A is a single-board computer (SBC) designed for demanding applications. The SBC fits in a 6U VME enclosure and is based on a PowerPC 8641D dual-core processor from Freescale Semiconductor operating at a clock speed of 1.33 GHz. The computer is available with as much as 4 GB of DDR2 SDRAM and as much as 1 GB of user Flash memory. The SBC features the flexibility of two PMC/XMC sites (PCI-X 133 MHz/eight-lane PCI Express) supporting input/output (I/O) via P0 and P2 as well as the company’s unique Additional Flexible Interface Xtension (AFIX) site. A variety of add-on AFIX modules are available, including Flash memory, digital I/O, SCSI 1553, and graphics modules. Part of the company’s PowerXtreme family of 6U VME SBCs, the SBC offers two Gigabit Ethernet 10/100/1000 Base-T ports, two USB 2.0 ports, and six serial ports. The RoHS-compliant PPC9A features broad-ranging operating system (Integrity, LynxOS, and VXWorks) support and comprehensive Deployed Test Software (Built-In Test and Background Condition Screening). GE Fanuc Embedded Systems, 2500 Austin Dr., Charlottesville, VA 22911; (800) 322-3616, e-mail: sales.embeddedsystems@gefanuc.com, Internet: www.gefanuc.com.

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